Three-wheel motor car



y 1939- P. A. c. F. VAN DEN STOCK 2,167,096

THREE-WHEEL MOTOR CAR Filed NOV. 13, 1955 Patented July 25, 1939- 2,l57,@9d

UNITED STATES PATENT OFFICE THREE-WHEEL MOTOR OAR Paul Anna. Charles Francois Van den Stock, Woluwe-Saint-Lambert, Brussels, Belgium Application November 13, 1935, Serial No. 49,635

In Belgium November 19, 1934 4 Claims. (Cl. 280-106.5)

The present invention relates to a three-wheel extending parallel to the front axle 4 of the car motor car and more particularly to a motor car and supported by said axle 4 by means of any of this kind having two front Wheels parallelly suitable arrangement of springs or dampers, such disposed at ends of a side of an equicrural trias generally used in motor car construction.

5 angle and connected by a frame to the rear In order to allow the structure to be more 5 wheel of the car and a car-body adapted to oscilsimplified the frame pa t t ded to Co nect late independently from said frame. said front wheels '5 and 2 withthe rear wheel 3 One object of the invention is to provide a consists as especially shown in Fig. 1 in a single motor car of the kind before-described of a longitudinally arranged member 9, positioned in very simplified construction and arrangement of the direction of the longitudinal axis of the car 10 parts in which said frame is allowed to oscillate and having at its fore end a fork I!) adapted to independently from said car body. be hinged on the axle a, said longitudinal frame For this purpose according to the invention, member 9 being provided with an arm H secured the car body and the frame are adapted to oscilto said frame member 9 so as to project sublate independently one from the other either stantially normally to the plane of said fork it, 15 about a common axis or adjacent parallel axes, so an elastic suspension of the body 5 being insured as to enable said frame to move normally to its by a spring l2 interposed between said arm 1 axis without said car body being caused to osciland a rigid part l3 provided in the front part of late. the car body 5. a

Another object of the invention is to enable the Owing to the fact that said spring I2 is adapted 20 frame of the car to be made of light but resistant to simultaneously act on the arm I l'of the frame metal members as for instance, tubular memmember 9 and on the front part l3 of the car bers. To this end, according to the invention, body 5, any shock caused by inequalities of the said frame is constituted by a single longitudinal road or any movement originated by the load of em ex e in t e e t o of t o g the car are damped, whereby the car body 5 is 25 tudinal axis of the car and having its front end llowed t oscillate about the spindle 8. or ed S0 as to al OW a ed co e o Wit Moreover, according to the invention, suitable said spindle, and an arm normally disposed to means are provided for allowing the springs E2 the plane of said forked portion of said connectto be adjusted according to the load supported by lng frame member, which arm is acted upon by th c r body 5, 30 one n f a spring v h pp end of According to the invention a relative movement Which acts On the fr t pa t Of the a b yis allowed between said longitudinal frame mem- According to the invention, said spring device b 9 and the car body 5 so as to prevent the is adjustably arranged 50 s to allow the Spring body 5 from striking against said frame part 9 tension to be regulated in order to appropriate when scillating, 35 said spring tension to the strains caused by the For this purpose a longitudinal groove s load of the car or to shocks and Car bu p tending in the direction of the longitudinal axis t us pr v di r an ast suspe s of the of the car is provided in the bottom of the car Car ybody 5 above said frame member 9 (Fig. 2). other features of the Construction and Shock absorbers may also be provided at any 40 ra e of parts will appeal from the follow suitable place so as to reduce the relative moveing description of the accompanying drawing ment between said oscillating parts of the car.

which diagrammatically illustrates merely by Way As usual in motor car construction t motor of example an embodiment of the invention is mounted at the front part of the car. In the Fi 1 h ws an r n m nt of essential parts improved car according to the invention, the 45 0f the improved C motor is supported by the fork l0 within the Fig. 2 is a cross section of the car taken on the groove [4, whereby n efljcient cooling of the line II-II of Fig. 1. motor is effected by air circulating in said groove Referring to Fig, 1 the motor car is provided [4 when the car is running.

with three wheels i, 2 and 3 disposed at apexes Having now particularly described and ascer- 50 Of an equicrllral tr a e, e Wh e s and 2 tained the nature of my said invention and in be the front wheels of the car. what manner the same is to be performed, I

In Fig, 1, in which the axle 4 is shown supdeclare that what I claim is: ported by the front wheels and 2, the axis Of 1. A three-wheel motor car comprising in 5 rotation of the y is formed y 81 Spindle 8 combination two parallelly arranged front wheels,

a front'axle connecting said front wheels, a rear wheel, a rear axle carrying said rear wheel a frame connecting said front axle to said rear axle, a pivotal connection between said front axle and said frame whereby said frame is allowed to oscillate about said front axle, a car body pivotally mounted at its front end to the forward end of said frame so as to be able to oscillate normally to said front axle, an arm carried by said frame and projecting upwardly therefrom, and a spring interposed between said arm and the forward portion of said car body for suspension of said car body on said frame so that oscillations of said frame about said front axle are damped by said spring without causing said car body to oscillate.

2. A three-wheel motor car comprising in combination two parallelly arranged front wheels, a front axle connecting said front wheels, a rear wheel, a rear axle carrying said rear wheel, a single longitudinal'frame member supported by said frontaxleand said rear: axle and extending -in the direction of the, longitudinal axisof the car, a forked portion provided at the fore end of said longitudinalframe member, a pivotal connection between the forward end of said forked portion and said-front axle whereby said frame member is allowed, to'oscillate about said front axle, a spindle transversely supported by the forward end of said forked portion and extending parallelly to said front axle, a car body pivotally mounted by the forward end thereof on said spindle so as to be able to oscillate about said spindle, an arm secured to said longitudinal frame member and projecting upwardly normally to the plane of said forked portion, a rigid portion provided at the front end of said car body, and a compression, spring interposed between said rigid portion of said car body and the upper part of said arm.

3. A three-wheel motor car comprising in combination two parallelly arranged front wheels,'a front axle connecting said front wheels, a rear axle carrying said rear wheel, a single longitudinal frame member supported by said front axle and said rear axle and extending in the direction of the longitudinal axis of the car, a forked portion provided at the forward end of said longitudinal frame member, a pivotal connection between the forward end of said forked portion and said front axle whereby said frame member is allowed to oscillate about said front axle, a spindle transversely supported by the forward end of said forked portion and extending parallelly to said front axle, a car body pivotally hinged by the forward end thereof on said spindle so as to be able to oscillate about said spindle, an arm secured to said longitudinal frame member and projecting upwards normally to the plane of said forked portion, a rigid portion provided at the front end of said car body, and a compression spring interposed between said rigid portion of said car body and the upper part of said arm, said car body having a groove longitudinally provided in the bottom thereof so as to extend above said longitudinal frame member whereby said car body and said frame member, if oscillating, are prevented from striking against each other. 7

4. A three-wheel motor car comprising in combination two parallelly arranged front wheels, a front axle connecting said front wheels, a rear wheel, a rearaxle carrying said rear wheel, a, single longitudinal frame member supported by said front axle and said rear axle and extending;

in the directionof the longitudinal axis of the car, a forked portionprovided at the forward'end of said longitudinal frame member, a pivotal connection betweenthe forward end of said forked portion and said front axle whereby said frame member is allowed to oscillate about said front axle, a spindle transversely supported by the forwardend of said forked portion and extending parallelly to said front axle, a car body pivot-' ally hinged by the forwardend thereof on said spindle so as to be able to oscillate about said spindle, an arm secured to said longitudinal frame member and projecting upwards normally to the.

plane of said forked portion, a rigid portion pro-v vided at the front end of said car body, and a compression spring interposed between said rigid portion of said car body and the upper 'part of said arm, said car body having a groove longitudinally provided in the bottom of said car body so as to extend above said longitudinal frame. I

member and a widened portion provided at the front part of said groove above said forked por-- tion of said frame member.

PAUL ANNA CHARLES FRANCOIS VAN DEN STOCK. 

